be quiet! Pure Power 12 650W PSU – 80+ Gold, ATX 3.1
be quiet!
be quiet! Pure Power 12 650W PSU – 80+ Gold, ATX 3.1
The be quiet! Pure Power 12 650W PSU is a Gold-rated ATX 3.1 power supply aimed at builders who want a quiet, efficient foundation for a gaming or media creation PC. It delivers 650W of continuous power on a single 12V rail and includes native PCIe 5.1 support, making it a practical choice for current and next-generation GPU pairings. For anyone prioritising low noise and long-term reliability without stepping up to a fully modular unit, this PSU covers both present needs and future-generation hardware.
Why this product
80 PLUS Gold certified, up to 92.7% efficient
The Gold certification means less energy is wasted as heat, reducing running costs and keeping internal temperatures down for quieter operation.
ATX 3.1 and PCIe 5.1 ready out of the box
It ships with a 12V-2x6 cable for next-generation PCIe 5.1 graphics cards alongside two PCIe 6+2-pin connectors for current-gen GPUs, covering both generations at once.
Handles power excursions up to double rated wattage
Short bursts of excessive GPU demand — common with modern graphics cards — are absorbed without issue, keeping the system stable under transient loads.
Temperature-controlled 120mm silence-optimised fan
Airflow-optimised fan blades reduce turbulence, and the fan only ramps up as heat demands — keeping noise to a minimum during everyday workloads.
LLC topology for stable voltage regulation
The LLC resonant design helps maintain tight voltage tolerances across the 12V rail, which matters for component longevity and consistent performance.
10-year manufacturer's warranty
A decade of coverage from be quiet! reflects long-term confidence in the unit and reduces the risk cost of a core system component.
- Continuous Power650W
- EfficiencyUp to 92.7%
- 80 PLUS RatingGold
- Form FactorATX 3.1
- PCIe SupportPCIe 5.1 (12V-2x6) + 2× PCIe 6+2
- Fan120mm temperature-controlled
- ModularNon-modular
- Warranty10 years
- SKUBEQ-715
- EAN4260052191170
- Fits standard ATX cases — form factor is ATX 3.1 at 160mm (L) × 150mm (W) × 86mm (H).
- Compatible with PCIe 5.1 graphics cards via the included 12V-2x6 connector.
- Works with current-generation GPUs using the two included PCIe 6+2-pin connectors.
- Non-modular design — all cables are permanently attached, so adequate case cable management space is recommended for a tidy build.
- Rated at 650W continuous; verify your total system TDP (CPU + GPU + components) stays within that envelope before purchasing.
- Not compatible with SFX or SFX-L small-form-factor cases — this is a full ATX unit.
Best for
- Quiet system builders who want a PSU that runs cool and stays audibly unobtrusive during everyday and gaming workloads.
- Gaming PC builders pairing a mid-to-high-end GPU with a modern CPU at 650W or under — a sensible ceiling for many current single-GPU builds.
- Future-proofing buyers who want PCIe 5.1 readiness today without paying for a higher-tier PSU.
- Long-term owners who value the reassurance of a 10-year manufacturer's warranty on a core component.
- Media creation or workstation builders looking for stable voltage regulation via LLC topology in a relatively compact ATX unit.
Trade-offs
- High-wattage enthusiast builds — systems combining a flagship CPU with a top-tier GPU may exceed 650W continuous power under sustained load.
- Cable-management-focused builders in tight cases — the non-modular design means unused cables must be routed and tucked away regardless.
- Small-form-factor builders — the ATX form factor will not fit SFX or SFX-L cases.
- Builders wanting a fully modular PSU — cables here are fixed, not detachable, which differs from modular alternatives at a similar tier.
Pure Power 12 650W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 92.7%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 12 650W is always the correct choice for quiet systems and gaming PCs!
Pure Power 12 650W is ATX 3.1 compliant and PCIe 5.1 compatible and offers peerless dependability with best-in-class features. Having both a PCIe 5.1 cable and PCIe 6+2 cables in the scope of delivery, this PSU offers remarkable convenience and outstanding compatibility.
Pure Power 12 650W is an ATX 3.1 PSU and comes with both native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, and 2 PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come.
Pure Power 12 offers 650W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Pure Power 12 650W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.
The exceptionally silent 120mm be quiet! fan is temperature-controlled to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class quiet functionality.
With its LLC topology Pure Power 12 650W provides best-in-class voltage regulation and efficiency. That makes it perfect for building very quiet systems or upgrading gaming and media creation PCs.
Pure Power 12 650W is certainly an eye-catcher. Motherboard and 12V-2x6 cables are finished with high quality black sleeves. The remaining premium black flat cables simplify installation and keep the system tidy. This results in increased airflow and improved cooling.
General
| Brand | be quiet! |
|---|---|
| Form Factor | ATX 3.1 |
| Continuous Power | 650W |
| Modular | Non-modular |
| Dimensions | 160mm (L) × 150mm (W) × 86mm (H) |
| Warranty | 10-year manufacturer's warranty |
Efficiency & Certification
| 80 PLUS Certification | 80 PLUS Gold |
|---|---|
| Efficiency | Up to 92.7% |
| Topology | LLC |
| 12V Rail | Single 12V rail |
Connectors & Cables
| PCIe Compatibility | PCIe 5.1 compatible |
|---|---|
| PCIe 5.1 Connector | 1× 12V-2x6 |
| PCIe 6+2 Connectors | 2× PCIe 6+2-pin |
| Cable Finish | Black sleeves (motherboard and 12V-2x6); black flat cables (remaining) |
Cooling
| Fan Size | 120mm silence-optimised be quiet! fan |
|---|---|
| Fan Control | Temperature-controlled |
| Fan Design | Airflow-optimised blades to reduce turbulence |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.